"We are likely to see a further increase in racist violence and bullying as the haters feel more confident and legitimised," he wrote in a blog post.

"We are also likely to see growing support for far-right parties across Europe and with forthcoming elections in Austria, France, Germany, Denmark and the Netherlands – to list just a few – we could also see far-right parties/politicians increase their representation and even enter government.

"More worryingly, has been the adoption of far-right ideas into the political mainstream, so that even if the parties fail to win power their ideas will."